I made my MS loom up in my front room, as I say it's only soldering the inlet plug on, and the CPS, and coil pack plugs and it's done! You then just run a wire to the fuel pump relay, ignition barrell, and earths when your in the car.
I intially left all my MFI loom untouched and taped it back out the way, but since my engine is out I have actually cut it all out mate to tidy things up a bit.